Con un ejemplo describa en que consiste deflacion​

deflación es la bajada generalizada de los precios de los bienes y servicios de un país que se mantiene a lo largo de un período de tiempo. La bajada de precios tiene que ser generalizada, es decir, debe afectar la gran mayoría de los productos y servicios que integran el mercado.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.